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Relationship between force signal and superficial electromyographic signals associated to hand movements 与手部运动相关的力信号与浅表肌电图信号的关系
Q1 Engineering Pub Date : 2023-02-16 DOI: 10.21533/pen.v11i1.3173
Camilo Leonardo Sandoval Rodríguez, Rodolfo Villamizar Mejia, Brayan Eduardo Tarazona Romero, Arly Darío Rincón Quintero, A-J Rodriguez Nieves
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引用次数: 0
Monthly drought monitoring of the surface water area of Sawa Lake, Iraq during 2016-2022 using remote sensing data 2016-2022年利用遥感数据对伊拉克萨瓦湖地表水域进行的月度干旱监测
Q1 Engineering Pub Date : 2023-02-07 DOI: 10.21533/pen.v11i1.3416
Lubna Alshammari, Omar Natiq Mohammed
Drought is a common phenomenon in Iraq's environment, and the country has experienced severe drought events exacerbated by the threat of climate change (low rainfall and high temperatures) over the past two decades. Iraq is located in a semi-arid region whose water resources have been restricted and mostly shared with its neighbours. To investigate the effect of drought on the surface water area of Sawa lake, we analysed 52 Sentinel-2 images from May 2016 to July 2022 using an open-source SNAP toolbox to map the boundary of the surface-water body of the lake. The results indicate that the surface water area of Sawa lake has decreased significantly over the last six years with the most extreme decline beginning in May 2021, when the area of the lake lost about 51% of its initial size (May 2016). By March 2022, the lake had disappeared and about 96% of the water's surface area had been lost. To better understand the potential causes of droughts, further analysis has been conducted on the effects of precipitation and human activities (vegetation cover and Al-Samawah saltpan for salt production) on the lake. Investigations revealed that the rapid expansion of agricultural areas around the lake by 254% and the increase in salt production from the Al-Samawah saltpan by about 121% are among the direct causes of the drought. In addition, the results of the statistical test analysis between the estimated surface water area of Sawa lake and human activities were significant at a 95% level of confidence. The findings of this study can assist decision-makers to understand the interaction between human activities and the lake's environment to design a strategic plan for lake recovery and a sustainable water resource management system in southern Iraq.
干旱是伊拉克环境中的一种常见现象,在过去二十年中,由于气候变化的威胁(低降雨和高温),该国经历了严重的干旱事件。伊拉克位于半干旱地区,其水资源有限,大部分与邻国共享。为了研究干旱对萨瓦湖地表水面积的影响,我们利用开源SNAP工具箱对2016年5月至2022年7月的52幅Sentinel-2图像进行分析,绘制了萨瓦湖地表水体的边界。结果表明,近6年来,萨瓦湖的地表水域面积明显减少,最严重的减少始于2021年5月,当时萨瓦湖的面积减少了约51%的初始面积(2016年5月)。到2022年3月,该湖已经消失,大约96%的水面面积已经消失。为了更好地了解干旱的潜在原因,进一步分析了降水和人类活动(植被覆盖和用于制盐的Al-Samawah盐田)对湖泊的影响。调查显示,湖周围农业面积迅速扩大了254%,Al-Samawah盐田的盐产量增加了约121%,这是造成干旱的直接原因。此外,Sawa湖估算的地表水域面积与人类活动之间的统计检验分析结果在95%的置信水平上具有显著性。研究结果有助于决策者了解人类活动与湖泊环境之间的相互作用,为伊拉克南部湖泊恢复和可持续水资源管理系统设计战略规划。
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引用次数: 0
Quantum fuzzy genetic algorithm with Turing to solve DE 用图灵的量子模糊遗传算法求解DE
Q1 Engineering Pub Date : 2023-02-07 DOI: 10.21533/pen.v11i1.3417
A. Hamid, Elias Igor Klebanov, S. Albermany
In this study, we create the quantum fuzzy Turing machine (QFTM) approach for solving fuzzy differential equations under Seikkala differentiability by combining it with a differential equation and a genetic algorithm. A theoretical model of computation called a quantum fuzzy Turing machine (QFTM) incorporates aspects of fuzzy logic and quantum physics
在本研究中,我们将量子模糊图灵机(QFTM)方法与微分方程和遗传算法相结合,创建了求解Seikkala可微性下模糊微分方程的量子模糊图灵机方法。一种称为量子模糊图灵机(QFTM)的理论计算模型融合了模糊逻辑和量子物理学的各个方面
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引用次数: 0
Evaluation of the incidence of optical and physical characteristics on the performance of a Fresnel Linear Collector prototype 光学和物理特性入射对菲涅耳线性收集器原型性能的评估
Q1 Engineering Pub Date : 2023-02-07 DOI: 10.21533/pen.v11i1.3105
Brayan Eduardo Tarazona Romero
This article aims to evaluate the optical and thermal behavior of a small Fresnel linear concentrator prototype developed under the appropriate technology paradigm. The system was developed by the Energy, Automation and Control Systems Research Group of the Technological Units of Santander, Colombia for water heating. The study of the device was developed from a series of simulations that took into account the optical and thermal factors of the real system, and a series of alternative scenarios that seek to improve the performance of the device were evaluated. The simulation process was carried out by applying the "TRNSYS" Software in order to study the dynamic behavior of the concentrator and the "Soltrace" Software applying the Monte Carlo Ray Tracing method. The results obtained showed that the improvement scenarios proposed to evaluate the optical characteristics of the primary reflection system do not significantly increase the performance of the device, while the optical characteristics applied to the secondary reflection system do reflect a significant increase. Finally, the variation of flow and the area of the preheater show a direct relationship in performance, reaching values that predict the ideal value of the operating variable.
本文旨在评估在适当技术范式下开发的小型菲涅耳线性聚光器原型的光学和热性能。该系统由哥伦比亚桑坦德技术单位的能源、自动化和控制系统研究小组开发,用于供暖。该设备的研究是在一系列模拟的基础上进行的,这些模拟考虑了真实系统的光学和热因素,并评估了一系列旨在提高设备性能的替代方案。应用“TRNSYS”软件和“Soltrace”软件对浓缩器的动态行为进行了仿真研究。所获得的结果表明,为评估一次反射系统的光学特性而提出的改进方案并没有显著提高器件的性能,而应用于二次反射系统中的光学特性确实反映了显著的提高。最后,流量的变化和预热器的面积在性能上表现出直接的关系,达到了预测运行变量理想值的值。
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引用次数: 1
Investigation of concrete properties using recycled waste concrete aggregate 利用再生废混凝土骨料研究混凝土性能
Q1 Engineering Pub Date : 2023-02-06 DOI: 10.21533/pen.v11i1.3368
S. Mohammed, S. Naimi
There are several environmental, economic, and energy reasons why RC is gaining popularity around the world. Key environmental problems include the potential for groundwater contamination due to the washing out of fresh concrete brought back from project sites, as well as the loss of natural sources of high-quality aggregate materials. The RC concrete (RCA) impact on the fundamental characteristics of traditional concrete is investigated besides the effect of different ratio effects of water-cement (w/c). The concrete as crushed rubble obtained from several Iraqi demolition sites and landfills is utilized to examine the properties of (RCA). This work utilized sand as natural, and concrete as crushed from various sources as aggregates around Baghdad city. A total of forty-five concrete mixtures were cast into nine groups. Groups were created to examine the impact of recycled coarse aggregate (CA) quality/content, dosage of cement, and w/c ratio. Strengths of compressing and splitting, and modulus of elastic tests were conducted. The findings demonstrated that the concrete rubble (CR) may be turned into recycled aggregate (RC) and utilized in the concrete manufacturing with qualities adequate for the vast majority of structural concrete applications in Iraq. Furthermore, the concrete strength has decreased by 6% to 30%, depending on the proportion of RC utilized to replace natural aggregate and the w/c ratio.
RC在世界各地越来越受欢迎有几个环境、经济和能源方面的原因。关键的环境问题包括,由于从项目现场带回的新鲜混凝土被冲走,地下水可能受到污染,以及优质骨料的自然来源的损失。研究了钢筋混凝土(RCA)对传统混凝土基本特性的影响,以及不同水灰比效应的影响。从伊拉克几个拆迁场和垃圾填埋场获得的碎石混凝土用于检查(RCA)的特性。这项工作利用了天然的沙子和来自巴格达周围各种来源的压碎混凝土作为骨料。共有四十五种混凝土混合物被分为九组。分组检查再生粗骨料(CA)质量/含量、水泥用量和水灰比的影响。进行了压缩强度、劈裂强度和弹性模量试验。研究结果表明,混凝土毛石(CR)可以转化为再生骨料(RC),并用于混凝土制造,其质量足以满足伊拉克绝大多数结构混凝土的应用。此外,混凝土强度降低了6%至30%,这取决于用于替代天然骨料的RC比例和水灰比。
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引用次数: 0
Beta-Glycosidase Activities of Lactobacillus spp. and Bifidobacterium spp. and The Effect of Different Physiological Conditions on Enzyme Activity 乳杆菌和双歧杆菌β -糖苷酶活性及不同生理条件对酶活性的影响
Q1 Engineering Pub Date : 2023-01-27 DOI: 10.28978/nesciences.1223571
Berat Cinar Acar, Z. Yüksekdağ
In this research, food (cheese, yoghurt) and animal (chicken) origin 39 Lactobacillus spp. and human origin (newborn faeces) three Bifidobacterium spp. were used. To designate the β-glycosidase enzyme and specific activities of the cultures, p-nitrophenyl-β-D glikopiranozit (p-NPG) was used as a substrate. The best specific activities between Lactobacilli cultures were observed at Lactobacillus rhamnosus BAZ78 (4.500 U/mg), L. rhamnosus SMP6-5 (2.670 U/mg), L. casei LB65 (3.000 U/mg) and L. casei LE4 (2.000 U/mg) strains. Bifidobacterium breve A28 (2.670 U/mg) and B. longum BASO15 (2.330 U/mg) strains belonging to the Bifidobacterium cultures had the highest specific activity capabilities. Optimization studies were performed to designate the impact of different pH, temperature, and carbon sources on the β-glucosidase enzyme of L. rhamnosus BAZ78 strain (β-Glu-BAZ78), which exhibits high specific activity. As optimum conditions, pH was detected as 7.5, the temperature as 30° C, and the carbon source as 2% glucose for the enzyme. Although the enzyme activity changed as the physiological conditions changed, the β-Glu-BAZ78 showed the highest specificity in the control groups.
本研究采用食品(奶酪、酸奶)和动物(鸡)源性39株乳酸菌和人(新生儿粪便)源性3株双歧杆菌。以对硝基苯-β-D glikopiranozit (p-NPG)为底物,确定培养物的β-糖苷酶和特异性活性。鼠李糖乳杆菌BAZ78 (4.500 U/mg)、鼠李糖乳杆菌SMP6-5 (2.670 U/mg)、干酪乳杆菌LB65 (3.000 U/mg)和干酪乳杆菌LE4 (2.000 U/mg)培养物的比活性最高。双歧杆菌短双歧杆菌A28 (2.670 U/mg)和长双歧杆菌BASO15 (2.330 U/mg)菌株的比活能力最高。通过优化研究,确定了不同pH、温度和碳源对L. rhamnosus BAZ78菌株(β-Glu-BAZ78) β-葡萄糖苷酶具有高比活性的影响。最佳条件为pH为7.5,温度为30℃,碳源为2%葡萄糖。虽然酶活性随生理条件的变化而变化,但β-Glu-BAZ78在对照组中表现出最高的特异性。
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引用次数: 1
Adapting hybrid approaches for electronic medical record management and sharing using blockchain sharding 使用区块链分片调整电子病历管理和共享的混合方法
Q1 Engineering Pub Date : 2023-01-26 DOI: 10.21533/pen.v11i1.3405
Abdulmajeed Abbas, Md. Abdul Hamid
In the past few years, it is noticed that management and sharing medical records is a key step towards increasing healthcare provider connectivity and making the healthcare system more efficient. The scalability and sustainability issues confer to mismanagement of patient is record and also raised several issues in privacy and security. The study aims to suggest more efficient alternatives for Electronic Healthcare System. Scalability and privacy are the major limitations that existing systems contain so the goal of this study is to define alternatives about how parameters like scalability, usability and data protection could be achieved in an efficient manner for healthcare system. In the healthcare industry, providing accurate, thorough, and up-to-date information on patients is critical. Another feature that allows researchers to consider efficient EHR systems is rapid access to patient records for boosting efficiency and coordination. Blockchain sharding technique is utilized along with hyper-ledger protocols and Proof-of-Authority to carry out our model implementation.
在过去几年中,人们注意到,管理和共享医疗记录是提高医疗保健提供者连通性和提高医疗保健系统效率的关键一步。可扩展性和可持续性问题导致患者记录管理不善,也引发了隐私和安全方面的几个问题。该研究旨在为电子医疗系统提出更有效的替代方案。可扩展性和隐私是现有系统的主要限制,因此本研究的目标是定义如何以有效的方式为医疗系统实现可扩展性、可用性和数据保护等参数的替代方案。在医疗保健行业,提供准确、全面和最新的患者信息至关重要。让研究人员考虑高效EHR系统的另一个功能是快速访问患者记录,以提高效率和协调性。区块链分片技术与超账本协议和授权证明一起用于实现我们的模型。
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引用次数: 1
Enhanced feature selection algorithm for pneumonia detection 肺炎检测的增强特征选择算法
Q1 Engineering Pub Date : 2023-01-23 DOI: 10.21533/pen.v10i6.3397
S. Abdullah, Wafaa M. Salih Abedi, R. Hadi
Pneumonia is a type of lung disease that can be detected using X-ray images. The analysis of chest X-ray images is an active research area in medical image analysis and computer-aided radiology. This research aims to improve the accuracy and efficiency of radiologists' work by providing a technique for identifying and categorizing diseases. More attention should be given to applying machine learning approaches to develop a robust chest X-ray image classification method. The typical method for detecting Pneumonia is through chest X-ray images but analyzing these images can be complex and requires the expertise of a radiographer. This paper demonstrates the feasibility of detecting the disease using chest X-ray images as datasets and a Support Vector Machine combined with a Naive Bayesian classifier, with PCA and GA as feature selection methods. The selected features are essential for training many classifiers. The proposed system achieved an accuracy of 92.26%, using 91% of the principal component. The study's result suggests that using PCA and GA for feature selection in chest X-ray image classification can achieve a good accuracy of 97.44%. Further research is needed to explore the use of other data mining models and care components to improve the accuracy and effectiveness of the system.
肺炎是一种可以通过x射线图像检测到的肺部疾病。胸部x线图像分析是医学图像分析和计算机辅助放射学中一个活跃的研究领域。本研究旨在通过提供一种识别和分类疾病的技术来提高放射科医生工作的准确性和效率。应该更多地关注应用机器学习方法来开发一种鲁棒的胸部x线图像分类方法。检测肺炎的典型方法是通过胸部x射线图像,但分析这些图像可能很复杂,需要放射技师的专业知识。本文论证了以胸部x线图像为数据集,结合朴素贝叶斯分类器的支持向量机,以PCA和GA作为特征选择方法检测疾病的可行性。所选择的特征对于训练许多分类器是必不可少的。该系统使用91%的主成分,准确率达到92.26%。研究结果表明,使用PCA和GA进行胸片图像分类的特征选择可以达到97.44%的良好准确率。需要进一步研究探索使用其他数据挖掘模型和护理组件来提高系统的准确性和有效性。
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引用次数: 2
Enhanced the prediction approach of diabetes using an autoencoder with regularization and deep neural network 利用正则化与深度神经网络相结合的自编码器增强了糖尿病的预测方法
Q1 Engineering Pub Date : 2023-01-17 DOI: 10.21533/pen.v10i6.3394
H. A. Ismael, Nabeel Al-A'araji, B. K. Shukur
Diabetes mellitus is considered one of the foremost common and extreme diseases worldwide. A precise and early diagnosis of diabetes is essential to avoid complications and is of crucial importance to the medical care that patients get. To achieve that, we need to develop a model to predict diabetes. There are many prediction models, but they suffer from some problems such as the accuracy of prediction being poor and the time complexity. The prediction process is highly dependent on important features. So, in this paper, we proposed a new model called (CAER-DNN) that depends on an unsupervised technique for generating newly important features and a deep neural network for the prediction process. The unsupervised technique is called complete autoencoder with regularization techniques (CAER) that uses to reconstruct the original features (newly learned features). It is focused too much on training the most important learned features and misses out on less important features. Thus, improving the performance of the prediction process. These important features are used as input to the deep neural network for the prediction of diabetes. Our model is applied to two sets of data including Pima Indian and Mendeley diabetic datasets. Based on the 10-fold cross-validation technique Pima Indian dataset achieves high performance in evaluation measures (f1-score 97.38%, accuracy, recall 97.25%, specificity 97.59%, precision 97.53%,). While the Mendeley diabetes dataset achieved high performance in evaluation measures (f1-score 94.51%, accuracy 98.48, recall 91.74%, accuracy-balance 98.21%, precision 98.21%) based on the holdout technique. compared with other existing machine learning and deep learning techniques our model outperformed existing techniques.
糖尿病被认为是世界上最常见和最极端的疾病之一。糖尿病的准确和早期诊断对于避免并发症至关重要,对患者获得的医疗护理至关重要。为了实现这一目标,我们需要开发一个模型来预测糖尿病。预测模型很多,但存在预测精度差、时间复杂等问题。预测过程高度依赖于重要特征。因此,在本文中,我们提出了一种新的模型(CAER-DNN),该模型依赖于无监督技术来生成新的重要特征,并依赖于深度神经网络来进行预测过程。无监督技术称为正则化完全自编码器(CAER),用于重建原始特征(新学习的特征)。它过于专注于训练最重要的学习特征,而忽略了不太重要的特征。从而提高了预测过程的性能。这些重要特征被用作深度神经网络预测糖尿病的输入。我们的模型应用于两组数据,包括皮马印第安人和门德利糖尿病数据集。基于10倍交叉验证技术,Pima Indian数据集在评价指标上表现优异(f1得分97.38%,正确率97.25%,召回率97.25%,特异性97.59%,精密度97.53%)。而Mendeley糖尿病数据集在基于hold - out技术的评价指标上表现优异(f1-score 94.51%,准确率98.48,召回率91.74%,准确度-平衡98.21%,精密度98.21%)。与其他现有的机器学习和深度学习技术相比,我们的模型优于现有的技术。
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引用次数: 0
Preserved built heritage assessment as dead or living: An assessment study regarding built heritage safeguarding approaches in Erbil 已死或活的保存建筑遗产评估:关于埃尔比勒建筑遗产保护方法的评估研究
Q1 Engineering Pub Date : 2023-01-16 DOI: 10.21533/pen.v10i6.3391
Mohamed Yahya Mohamed Al-Barzngy, Mahmood Khayat
Erbil city is recognized by its historical monuments. The citadel which is believed to be one of the oldest continuously inhabited civilized settlements was listed on UNESCO’s permanent World Heritage List (2014). A comprehensive preservation plan for the citadel was approved by the local authorities in 2006. This plan included recommendations for what was later called the Citadel's buffer zones. The buffer zone includes the traditional sectors of Erbil. Enormous efforts were done during the last decade by local authorities, UNESCO, NGOs, and local individuals. This study aims to assess and categorize preservation efforts implemented in these areas. The literature review diagnosed three main approaches for preservation that are followed in various parts of the world. These approaches can be categorized into two main approaches (dead and living heritage approaches). The preservation methods followed in the selected maintained structures within Erbil's traditional sectors were assessed by detecting 40 criteria that represent both approaches. The assessment was conducted through fieldwork in which 222 samples (vernacular and traditional buildings) were included. Statistical analysis depicted that the local authorities' approaches can be regarded as a dead heritage approach, while the recommended approach in the approved plan for the revitalization of Erbil Citadel and other traditional sectors can be regarded as a living heritage preservation approach. The paper recommends the living heritage preservation approach as a rescue from the at-risk status of built heritage structures of traditional sectors in Erbil city.
埃尔比勒市因其历史古迹而闻名。这座城堡被认为是最古老的持续有人居住的文明定居点之一,已被列入联合国教科文组织的永久性世界遗产名录(2014年)。2006年,地方当局批准了一项全面的城堡保护计划。该计划包括后来被称为城堡缓冲区的建议。缓冲区包括埃尔比勒的传统地区。在过去十年中,地方当局、教科文组织、非政府组织和当地个人做出了巨大努力。本研究旨在评估和分类在这些地区开展的保护工作。文献综述诊断了世界各地采用的三种主要保存方法。这些方法可分为两种主要方法(死亡遗产方法和活遗产方法)。通过检测代表这两种方法的40个标准,对埃尔比勒传统区内选定的维护结构所遵循的保护方法进行了评估。评估是通过实地调查进行的,其中包括222个样本(乡土建筑和传统建筑)。统计分析表明,地方当局的做法可以被视为一种死的遗产做法,而埃尔比勒城堡和其他传统部门振兴核定计划中的建议做法可以被认为是一种活的遗产保护做法。本文建议采用活的遗产保护方法来拯救埃尔比勒市传统部门的建筑遗产结构的风险状况。
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引用次数: 1
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Periodicals of Engineering and Natural Sciences
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